Question

If Sₙ denotes the sum of first ‘n’ terms of an A.P, ‘a’ denotes the first term & ‘d’ common difference of an A.P, then find S₁₀ if a = 6 and d = 3​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

195

Step-by-step explanation:

a = 6

d = 3

we know that, sum of first n terms of an A. P is

Sn =

$\frac{n}{2} (2a \: + (n - 1)d)$

so,

$\frac{10}{2} (2 \times 6\: + (10- 1)3$

=5(12 + 9 × 3)

= 5(12 + 27)

= 5 × 39

= 195

Answer provided by GauthMath.